East Pelham TS Project Alabaster SS 2009 W-1 E. Pelham – Alabaster SS 115kV TL

Carriere Southwest 230/115 kV Project New Kiln – Carriere SW 230 kV T.L W-2

ST CT MCINTOSH T.S. CIBA SPECIALTY CHEMICALS C.A.E.S. WEST MCINTOSH T.S. BARRY S.P. ELLICOTT T.S. “B” LINE “A” LINE C.A.E.S. Generation Addition / APCO TL Impacts TATE & LYLE SUCRALOSE 356 MW GENERATION ADDITION TOTAL GENERATION CAPACITY = 694 MW ( ) 2011 Summer Peak Washington County #1 Off Loss of West McIntosh – C.A.E.S. 115 kV TL McIntosh T.S. – C.A.E.S. 115kV TL Bundled (2) /7 ACSR, R = 2126 A TL Loading = 122% (2602 A) BAY GAS OLIN CORP. PRAXAIR WASHINGTON CO. CO-GEN 2010 Winter Loading = 106% (2489 A) 2010 W-3a

MCINTOSH T.S. CIBA SPECIALTY CHEMICALS C.A.E.S. BARRY S.P. ELLICOTT T.S. “B” LINE “A” LINE TATE & LYLE SUCRALOSE Planned Improvements for McIntosh Area WEST MCINTOSH T.S. TL RECONDUCTOR: MCINTOSH T.S. – BAY GAS – C.A.E.S. 115KV CIRCUIT # MI BUNDLED (2) /7 ACSS, R = 2908A (Spring 2010) TL RECONDUCTOR: MCINTOSH T.S. – C.A.E.S. 115KV CIRCUIT # MI BUNDLED (2) /7 ACSS, R = 2908A (Fall 2010) LOOP BARRY S.P. – MCINTOSH T.S. “B” 115KV TL INTO C.A.E.S. (POWERSOUTH TO CONVERT BUS AT C.A.E.S. TO A BREAKER AND HALF) ( ) UPGRADE THE C.A.E.S. AND BARRY “B” 115KV TERMINALS AT MCINTOSH T.S. TO 3000A. UPGRADE TRANSFER SWITCHES AND BREAKERS TO 3000A. ( ) LOWMAN MCINTOSH SW BAY GAS OLIN CORP. PRAXAIR WASHINGTON CO. CO-GEN CT ST 2010 W-3b

Laguna Beach Substation Laguna Beach 230 / 500 kV Substation 2011 W-4

Laguna Beach – Holiday 115 kV Line Holiday – Hathaway Tap 115 kV Laguna Beach – Holiday 115 kV T.L. Holiday – Hathaway Tap 115 kV T.L W-5

Smith – Laguna Beach Line Conversion to 230 kV Smith – Laguna Beach 115 kV Transmission Line 2011 W-6

Networked Mobile 115 kV Transmission System NORTH THEODORE 2012 W-7 LYNNDELL DS DAWES DS SNOW RD DS SKYLAND DS MICHAEL BLVD DS THEODORE DS CLOVERLEAF DS COTTAGE HILL DS DEMETROPOLIS DS NAVCO DS HALLS MILL RD DS McDUFFIE ISLAND SPRINGHILL DS SPRINGDALE DS BEL AIR ORCHARD U.S.A. WOLF RIDGE ALPINE CRICHTON GRELOT RD DEE’S DS LOTT ROAD SEMMES DS WHEELERVILLE PROVIDENCE SCHILLINGER RD KRONER DS RACETRACK DS N CRICHTON SS W. GRELOT RD DOG RIVER DS SOUTH MOBILE DS #5 (2015) #6 (2015) #4 (2015) #7 (2015) #8 (2015) #9 (2015) #3 (2014) #1 #10 (2016) #2 (2012) BIG CREEK NORTH MOBILE CHICKASAW

New Shoal River – Santa Rosa 230 kV TL (73 miles) Santa Rosa Substation 2012 W-8 Laguna Beach Substation Shoal River – Santa Rosa – Laguna Beach 230 kV T.L. Shoal River Substation

Hillabee Danway SS N. Opelika Goatrock N. Auburn Franklin CC Upgrade Hillabee – North Opelika 230kV Line – 38 miles Upgrade Hillabee – Danway 230kV Line – 32 miles Hillabee – Danway S.S. 230 kV T.L. Upgrade Hillabee – North Opelika 230 kV T.L. Upgrade 2013 W W-9

Reconductor the Barry – Chickasaw 230 kV TL (19.2 miles) Barry – Chickasaw 230 kV T.L W-11

CPL EPES LIVINGSTON MANNINGTON WOOD FLOORS CEMEX DEMOPOLIS BELLAMY S.S. BELLAMY PLANT GREENE COUNTY SONAT GALLION WEST DEMOPOLIS FAUNSDALE DEMOP. IND. PK. BW EMC COATOPA ROCK –TENN LINDEN EPES BIRDEYE T.S. BIRDEYE D.S. SONAT YORK CUBA Plant Greene County Substation 2013 W-12 Add 400MVA 230 / 115 kV Autobank Greene County – Meridian NE 230 kV T.L. Greene County – Sykes S.S. 230 kV T.L. Green Co. – N. Selma 230 kV T.L. Green County – Duncanville 230 kV T.L.

Rebuild Pinckard – Slocomb – Holmes Creek 115 kV TL (23 miles) Pinckard – Slocomb 115 kV T.L W-13 Slocomb – AL / FL Line 115 kV T.L W-14

Snowdoun Dixie ECI Cecil Union Springs Pike Co Madison Park S. Montg W. Montg Hope Hull Troy S.S City of Troy Luverne Montg. SS Upgrade miles Snowdoun – Pike Co 230kV TL to 100ºC Snowdoun – Pike Co. 230 kV T.L W-15

Kemper County Generation 2014 W-16

Gaston – East Pelham 230 kV T.L W-17 Gaston – Twelve Oaks – E. Pelham 230 kV TL

New Epes – Eutaw 115 kV T.L. (22.5 miles) South Tuscaloosa T.S. New South Duncanville 230 / 115kV Substation Tuscaloosa Solution Phase W-18

Upgrade Barry – Crist 230 kV T.L. to 125 degree C Operation from Alabama State Line to Plant Crist Barry – Crist 230 kV T.L W-19

Orange Grove 230/115 kV Substation Project 2017 W-20 Reconductor 2.5 mile 230 kV Line with 1033 ACSS at 200°C Reconductor 2.5 mile 230 kV Line with 1033 ACSS at 200°C

.. Autaugaville Madison Park TS Washington Park Montgomery WW Woodmere Masonic Home Hunter SS E. Mont. S. Gunter Park AUM Dixie ECI Arrowhead Mt Meigs Eastdale N. Mont Maxwell AFB Jeff St Holt St Carter Hill Rd Forbes Rd Capitol Heights Gunter AFB Mont SS West Mont Madison Park Gunter Park State Capitol Bouldin Dam Russell Coosa 1 & 2 Wetumka DS Cent AL ECI Redland Rd Wetumpka TS Elmore ECI Speigner Robinson Springs Millbrook S. Prattville E. Prattville Prattmont Prattville Prattville ECI IP Prattville County Line Rd To Snowdoun Gaston Steam Plant Reconductor County Line Road – Elmore County 230 kV Line – 18.2 miles New Elmore County 800MW CC Plant New 30 mile Elmore County- Madison Park 230 kV Line Elmore County Area 2019 W W-21

Liberty– Defuniak 115 kV T.L PS-1 Liberty Defuniak

Upgrade line to 100 deg C operation (167) MVA Dale County – Bay Springs Junction 2011 PS-2 Dale County Bay Springs

Clio Area Upgrades Current 62 MVA Path limited under contingencies 2012 PS-3

Baldwin County Alabama 2012 PS-4 MIFLIN JCT. New 115 kV line 115 kV line Uprate Capacitor Additions Florida Avenue Miflin Junction Wolf Bay

Uprate line to 100 deg C operation (142 MVA) Brewton – Freemanville 115 kV T.L PS-5 Freemanville Brewton

Gantt-Fuller 115 or 230kV line Northern System Voltage Problem 2014 PS-6

Cole Road Transformer 2009 SME-1

Polkville 161 kV Source 2010 SME-2

Purvis Bulk Transformer Upgrade 2010 SME-3

Silver Creek Interconnection 2011 SME-4

Moselle 161 kV Generation Expansion 2012 SME-5

South Hoy 161 kV Source 2012 SME-6

Prentiss 161 / 69 kV Substation 2013 SME-7

East Waynesboro 230 / 69 kV 2017 SME-8